nipat;41260 said:With enough CO2 (and enough nutrients) around, it seems plants can tolerate less light better.
CO2 requirements for Low Light Plants (pontederiifolia) - Mombu the Aquarium Forum
aquabillpers;41270 said:Yes, CO2 helps!
It would be interesting to see how by how much it helps, though. I'm thinking that if a certain plant at the bottom of a tank isn't prospering due to insufficient light, by how much would the CO2 have to be increased to help? Or, if the CO2 level is raised to, say, 10 PPM, by how much would the lighting have to be increased, if any?
My guess is that CO2's benefit in a low light environment is marginal, but if one's tank is close to having enough light, CO2 would tip the balance.
Tom Barr;41303 said:-snip-
Nitpat and Steven, try the 3 day blackout, 2 days or light(or 3), then 3 days off, 3 days on, etc.
Do this a few cycles, do a water change the day you add the light back. Also, cover the tank so that zero % light is getting in, use black trash plastic bags etc.
Trim up the plants that tend to get infested(you'll note so get much worst than others) more.
The cycles will tend if you are making headway. Try a bit more CO2/less light when you turn the lights back on. After a week or two of no algae at lower light, try turning the light back up, but do a water change that day also, and make sure the CO2 is good.
Had both these algae about 2 months ago and there's none left.
Yes, it was my first time and I think I'll wait a little while before the second blackout cause the first one cost the life of my dawnoi . Thanksnipat;42114 said:Is this your first time black-out?
If so, you can do it again. Tom said it might need 2-3 cycles of black-out for
some hardy algae (such as Spirogyra).
Actually they grow on the left side too near the rocks and CO2, anyway I have re-position the inflow and outflow of my filter to see if the right side of the tank will get enough CO2 flow. That's also explain why my daonoi didn't grow well before at the very right side of the tank. Thanks.Philosophos;42116 said:You could always try upping the PO4 a little.
More importantly though, I notice that your algae problems focus on the side of your tank farthest from the CO2. Perhaps more than one diffuser would be of some help, or a reactor or needle wheel. Anything to raise concentrations on the right hand side.